Hialeah Gardens High School  2021-2022

Content: Inputs and outputs to the reservoir of dissolved nutrients.The biological uses of nutrients.Nutrient availability and productivity.

 

Learning Outcomes: Candidates should be able to:

(a) demonstrate an understanding that there is a reservoir of nutrients dissolved in the surface layer of the ocean

(b) explain the processes by which the reservoir of dissolved nutrients is replenished, including upwelling, runoff from the land and dissolving of atmospheric gases

(c) demonstrate an understanding that the reservoir of dissolved nutrients is depleted by uptake into organisms in food chains

(d) explain how productivity may be limited by the availability of dissolved nutrients

(e) demonstrate an understanding that the nutrients taken up by organisms in food chains may sink to the sea floor in faeces or after death, may be incorporated into coral reefs, or may be removed by harvesting

(f) show that each of the nutrient cycles listed below can be summarized as shown below, and state the biological use of each nutrient:

• nitrogen, which is used to make proteins

• carbon, which is used to make all organic materials

• magnesium, which is used to make chlorophyll

• calcium, which is used to make bones, corals and shells

• phosphorus, which is used to make DNA and bone

(g) use the knowledge and understanding gained in this section in new situations, or to solve related problems.